Do F54 L28 torque stgs differ from L24?

[EricB]

Hi all,

I have service manuals for my '73 240z.

But am rebuilding my '81 F54 L28 shortblock & don't have manual for the ZX from which it came from.

Are torque values different from the L24 for F54 L28 rod bolts? main bearing caps? flywheel? cylinder head bolts?

And if they are different, what are they please.

Thanks!

-e

[EricB]

I should also add this is in reference to an 81 non-turbo flat top piston ZX shortblock.

-e

[Ed]

Good question, I'm also rebuilding a '81, F54. I have been using the torque specs specified in my service manual which has specs for L24-L28 70-78. I hope they are the same. BTW you shouldn't re-use the rod bolts. I would highly recommend either getting some new ones or go with ARP.

[HS30-H]

Scans of the Factory Engine Manual:

[HS30-H]

Second page:

[EricB]

Thanks Alan

Your torque values in your Dec 77 manual are the same I have.

Is there any reason to believe that they might have changed any of them on the ZX based L28's from I guess what 1980 onwards? that is as opposed to the 280Z L28....

-e